coccyx

US /ˈkɑːk.sɪks/
UK /ˈkɑːk.sɪks/
"coccyx" picture
1.

꼬리뼈

a small, triangular bone at the base of the spinal column in humans and some apes, formed of fused rudimentary vertebrae.

:
He fell and bruised his coccyx.
그는 넘어져서 꼬리뼈를 다쳤다.
The coccyx is the final segment of the vertebral column.
꼬리뼈는 척추의 마지막 부분이다.